Definition of coal :
1. A black, or brownish black, solid, combustible substance, dug from beds or veins in the earth to be used for fuel, and consisting, like charcoal, mainly of carbon, but more compact, and often affording, when heated, a large amount of volatile matter.
2. A thoroughly charred, and extinguished or still ignited, fragment from wood or other combustible substance; charcoal.
3. To burn to charcoal; to char.
4. To mark or delineate with charcoal.
5. To supply with coal; as, to coal a steamer.
6. To take in coal; as, the steamer coaled at Southampton.
castigate, blacken, criticize, gallery, conflict diamonds, colliery, anthracite, coalfield, gold rush, sear, scorch, censure, brand, smokeless, embers, coal miner, goldmine, spark, char, ember, coal mine, coal mining
fuel (part of speech: noun)
mineral (part of speech: noun)
clay, calcite, lime, mica, talcum, chromite, bauxite, cryolite, azurite, iolite, lazurite, peat, asbestos, alabaster, fool's gold, fluorspar, corundum, silicate, silica, feldspar, obsidian, glauconite, garnet, barite, selenite, gypsum, fluorite, quicklime, kaolinite, aragonite, carbon, spar, mineral, lignite, pitchblende, pyroxene, pyrite, pumice, hornblende, molybdenite, brookite, magnesite, orthoclase, crystal, chlorite, salt, cobalt, emery, boron, brimstone, quartz, coke, ozocerite, graphite, vermiculite, sulfur, chalcedony, diatomite, rhodonite, manganese
- Well, thought I, as I stepped to the corner for some coal, if I was afraid of this creature when he was dead, to what condition of mind shall I be reduced by his being alive? - "The Frozen Pirate", W. Clark Russell.
- But, to tell the truth, it did look some like one, painted black as a coal. - "Around the World with Josiah Allen's Wife", Marietta Holley.
- " Come on, then, and take a drink," said the coal man. - "Forty Years a Gambler on the Mississippi", George H. Devol.